The former Sweden international becomes the third player to wear that number in the last three years with 20-year-old Martial taking over from loan flop Radamel Falcao when he joined last summer for an initial fee of £36million.

Frenchman Martial's choice of number 11 mirrors his choice of shirt for the national team at Euro 2016.

Ibrahimovic becomes the seventh man to wear United's number nine shirt in the Premier League era.